[cobirds] Lagerman Reservoir, Boulder County, July 13

Hey, all. Hannah Floyd and I stopped in at Lagerman Reservoir, Boulder County, earlier this Tues. evening, July 13. Shorebird-wise, we saw a *long-billed curlew,* a *marbled godwit,* a *western willet,* 4 *least sandpipers,* and a *lesser yellowlegs.* Also, family groups of *American avocets*

[cobirds] Field Trip Announcement: Greenlee Preserve, Boulder Co., Nov. 1, "Lafayette Birds!"

Please join us *Sunday, Nov. 1, 2020,* for our monthly "Lafayette Birds!" outing at Greenlee Preserve, eastern Boulder County. We will *convene at 1pm*, Mountain STANDARD Time, at the base of the very short trail up to the preserve proper. We will bird in *small groups* until about 3pm. Tons (l

[cobirds] Broader question about access to Rocky Mountain Arsenal National Wildlife Refuge, Adams County

Hey, all. Thanks to Charlie and Patrick and Candice for the tips on access to Rocky Mountain Arsenal National Wildlife Refuge. Hannah Floyd and I were all ready to go out there this Monday morning, Oct. 19, when our phones informed us that the refuge is closed Mondays and Tuesdays; and not open

Re: [cobirds] Fallout of White-throated Sparrows and Hermit Thrushes, Eastern Boulder County, Oct. 18

On Sunday, October 18, 2020 at 10:39:29 PM UTC-6 pato... wrote: > > This morning, Sunday Oct. 18, I had a first eBird record of a > White-throated Sparrow in the four Denver City Park hotspots outside of the > Denver Zoo. > It was in a loose flock of sparrows, juncos and chickadees that flew o

[cobirds] Fallout of White-throated Sparrows and Hermit Thrushes, Eastern Boulder County, Oct. 18

Hey, all. On my ramble earlier today, Sun., Oct. 18, about the Greater Greenlee Ecosystem, eastern Boulder County, I found at least 4 *white-throated sparrows* and at least 8 *hermit thrushes.* I'm sure Bryan Guarente has an explanation... Ted Floyd Lafayette, Boulder County P. s. Like others

[cobirds] Rock Wrens at The Arsenal--oh yeah!

Thanks to Van Rudd for this note. The *rock wren* show yesterday, Sat., Oct. 3, at Rocky Mountain Arsenal National Wildlife Refuge, Adams County, was brilliant. Easily the most impressive rock wren migration I've ever witnessed. My companions and I saw at least 8--some of them on rocks, others

[cobirds] Lafayette Birds!--field trip, tomorrow, 1pm, Greenlee Preserve, Boulder County

Hey, everybody. Please join us for an easygoing bird walk (and insect walk) tomorrow afternoon, Sun., Oct. 4, at Greenlee Wildlife Preserve, eastern Boulder County. This outing is part of the "Lafayette Birds!" initiative, and it is free & open to the public. We will *meet at 1pm* at the entr

[cobirds] Re: Sunday Nocturnal Migrants

Damn you, Guarente, I was hoping to get a good night's sleep. It's prolly gonna be a Linus-in-the-pumpkin-patch night for me, but I'm headed out now . . . Ted Floyd Lafayette, Boulder County On Sunday, September 27, 2020 at 9:09:42 PM UTC-6 Bryan Guarente wrote: > With low cloud-cover, and nor

[cobirds] The Prophesy of Guarente, or, Migrants Galore Today in e. Boulder County

Hey, all. Well, Bryan's prediction was spot-on for the Greenlee/Waneka/Hecla complex of eastern Boulder County. It was cool and cloudy this Sunday afternoon, Sept. 27, with new arrivals galore. Here's a summary: * 2 *ring-necked ducks* and another *Aythya*, the first diving ducks there this se

[cobirds] The perils of field identification

Hey, all. Yesterday morning, Wed., Sept. 16, I had nothing better to do than make a video of what I assumed was an immature (hatch-year) black-chinned hummingbird, *Archilochus alexandri*, at Greenlee Preserve, eastern Boulder County. Seconds after I pressed the record button on my camera, the

[cobirds] Re: Pectoral Sandpipers - Boulder Co

Hey, Peter & all. Hannah Floyd and I were at Little Gaynor Lake, Boulder County, at 10:10 am this Sat. morning, Sept. 12, and we also saw Peter Ruprecht's *pectoral sandpipers,* 3 for sure. A 4th bird, somewhat more distant, was perhaps a stilt sandpiper. Not sure about that, though. Another *C

[cobirds] Black-eared Bushtit, etc., Greenlee Preserve, Boulder County, Sun., Aug. 30

Hey, all. I spent a goodly chunk of yesterday, Sun., Aug 30, poking around the "Greater Greenlee Ecosystem," Boulder County--that's basically the preserve proper, plus nearby Waneka Lake, Hecla Pond, Waneka Landing, Thomas Open Space, and some adjoining ditches and residential neighborhoods. Mo

[cobirds] Southeastern Colorado, Sun., Aug. 23, 2020

Hey, everybody. Hannah Floyd and I did the Limon-to-Lamar-to-Ordway 3-4-5 right triangle back on Sun., Aug. 23, 2020. Insects and birds were our primary desiderata. Highlights follow. Neenoshe Reservoir, Kiowa County. Insects: Great Plains giant tiger beetle, thin-lined tiger beetle. Birds: *up

[cobirds] variation in juvenile Cliff Swallows

Hey, all. Leaving aside for now the question of HOW juvenile cliff swallows are variable, I thought it would be cool to ask WHY juvenile cliff swallows are variable. Ask, and it will be given you: https://academic.oup.com/auk/article/131/2/121/5148982 The preceding is a link to a 2014 paper in

[cobirds] Re: So Long McCown's Longspur, Hello Thick-billed Longspur

On Thursday, August 13, 2020 at 3:03:34 PM UTC-6 wrote: > Another thought on these birds named for men (3 women so -honored, > all by their first names). I think of the Wilson's Warbler or the > Swainson's Thrush as wild creatures. The " 's " implies possession -- and I > don't think Wilson

[cobirds] Re: So Long McCown's Longspur, Hello Thick-billed Longspur

Hey, Richard et al. Two quick responses: 1. Speaking of name changes, the nomenclatorial authority in his matter hasn't been the "AOU" for some time now. It's the "AOS," the American Ornithological Society. It seems nobody knew what "AOU" stood for, especially the "O" part of the moniker. ;-)